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.\" ========================================================================
.\"
.IX Title "Config::Model::Value::LayeredInclude 3pm"
.TH Config::Model::Value::LayeredInclude 3pm "2022-07-28" "perl v5.34.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH "NAME"
Config::Model::Value::LayeredInclude \- Include a sub layer configuration
.SH "VERSION"
.IX Header "VERSION"
version 2.152
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 4
\&    # in a model declaration:
\&    \*(Aqelement\*(Aq => [
\&      \*(Aqinclude\*(Aq => {
\&        \*(Aqclass\*(Aq => \*(AqConfig::Model::Value::LayeredInclude\*(Aq,
\&
\&        # usual Config::Model::Value parameters
\&        \*(Aqtype\*(Aq => \*(Aqleaf\*(Aq,
\&        \*(Aqvalue_type\*(Aq => \*(Aquniline\*(Aq,
\&        \*(Aqconvert\*(Aq => \*(Aqlc\*(Aq,
\&        \*(Aqsummary\*(Aq => \*(AqInclude file for cascaded configuration\*(Aq,
\&        \*(Aqdescription\*(Aq => \*(AqTo support multiple variants of ...\*(Aq
\&      },
\&    ]
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This class inherits from Config::Model::Value. It overrides
_store to trigger a refresh of layered value when a value is
changed. I.e. changing this value trigger a reload of the referred configuration
file which values are used as default value. This class was designed to
cope with multistrap <http://wiki.debian.org/Multistrap> configuration.
.SS "\s-1CAUTION\s0"
.IX Subsection "CAUTION"
A configuration file can support 2 kinds of include:
.IP "\(bu" 4
Layered include which sets default values like multistrap or ssh. These includes are
read-only.
.IP "\(bu" 4
Real includes like \f(CW\*(C`apache\*(C'\fR. In this cases modified configuration items can be written to
included files.
.PP
This class works only with the first type
.SH "AUTHOR"
.IX Header "AUTHOR"
Dominique Dumont
.SH "COPYRIGHT AND LICENSE"
.IX Header "COPYRIGHT AND LICENSE"
This software is Copyright (c) 2005\-2022 by Dominique Dumont.
.PP
This is free software, licensed under:
.PP
.Vb 1
\&  The GNU Lesser General Public License, Version 2.1, February 1999
.Ve